Beltrand504
26.07.2019 •
Mathematics
The sides of a parallelogram are 8in. and 10in. if it’s shorter altitude is 4in., find its longer altitude. i really need someone to me with this.
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Ответ:
The sine of angle a = 4/8 = .5
angle a = arc sine (.5) = 30 degrees
angle b = angle a = 30 degrees
sine (angle b) = sine (30) = .5
sine (b) = opposite / hypotenuse = long diagonal / 10
.5 = long diagonal / 10
long diagonal = 5
Ответ:
79.69/102.30 = 0.7789 = 77.9% markup